Abstract
WHAT IS ALREADY KNOWN ON THIS TOPIC? Men who have sex with men (MSM) in China have a high rate of human immunodeficiency virus (HIV) infection. Pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP) have been shown to be effective in preventing HIV, which may help to contain the HIV epidemic among MSM. WHAT IS ADDED BY THIS REPORT? This study found that knowledge and usage of PrEP were low among MSM, indicating that this population is at high risk for HIV infection. Promotion of PrEP and PEP among MSM is necessary to reduce the risk of HIV infection in this population. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? PrEP and PEP are novel HIV prevention strategies that have been demonstrated to be effective and safe. To further reduce HIV transmission among MSM in China, it is necessary to promote the use of PrEP and PEP.